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Windows 7 memory leak

Running win7 x64 and this past week I have left my computer idle for some hours and started noticing some degraded computer performance when i wanted to use it for basic office stuff to gaming.

What I have found is that I am sitting at 3.5/4 GB of ram. So my first check was to see if anything was eating it and there wasn't. The list just didn't add up (yes i checked on all users).

I did some research and find sites that tell you to disable prefetch, superfetch etc but didn't make a difference.

On boot it sits around 1.2 and slowly creeps up, there is no noticable program I am using that is causing it so I am not actually sure now.

On closer inspection I have seen the nonpaged memory jump from 50 to 2200 (as I write this post) , I have tried to search for this but cant find any site that tells me exactly why its sky rocketing.

There is the argument of windows caching stuff but if I had to open up a large app , it would have very poor performance right now. It seems like windows is not letting go of "cached" memory when i want to utilize it.

I have only recently had this problem, never before or did I not notice it, highly doubt that. I have also changed my pagefile size from customer 1.5 X to windows managed. All apps updated.

Anyone with any experience in this , please let me know.

Thanks.

EDIT:

Last edited by Cider; February 19th, 2012 at 06:56 PM.

The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it.Albert Einstein

Well, if it's only just started then I think we need to look at stuff that gets updated regularly.

1. Security software
2. Browsers
3. MS Windows.............and we have just had a patch Tuesday?

Please get a copy of Belarc Advisor and let it update and run. Scroll down the bottom and look for any updates with a red "X" against them. Uninstall and reinstall these patches.

If it isn't a screwed up Windows update then try closing all browser windows and tabs and see if the same thing happens.

Is your processor showing a high level of activity during the idle period? I use System Monitor II by Igogo to look at this.

If you cannot do someone any good: don't do them any harm....
As long as you did this to one of these, the least of my little ones............you did it unto Me.
What profiteth a man if he gains the entire World at the expense of his immortal soul?

This is really for sorting out Windows memory error messages, but it should provide the information as to what is causing the increased usage and retention of non-paged memory.

Beta drivers? beta drivers!!!! shame on you sir, you only put beta drivers on test rigs or if you already have a driver problem and can't make matters much worse

I do have some NVIDIA boards, but I always let their software check for updates. No problems so far.

I disable betas and video card software in File Hippo. You may see something that looks OK but won't work for your particular board......... I once wasted a couple of hours learning that lesson

TBH, I generally buy AMD/ATI on price/performance and because I have always found that NVIDIA stuff tends to run rather hot. This is an HD 5670 and is at 35C after several hours, and the HD 6770 is at 41C. Ambient temp is 24C.

If you cannot do someone any good: don't do them any harm....
As long as you did this to one of these, the least of my little ones............you did it unto Me.
What profiteth a man if he gains the entire World at the expense of his immortal soul?